At a Glance
- Tasks: Build and deploy cutting-edge AI systems for diverse industries, solving real-world problems.
- Company: Join Stackfix, a dynamic London startup backed by top-tier investors.
- Benefits: Competitive salary of £100k-£120k plus equity and unique learning opportunities.
- Other info: Experience rapid variety across sectors, enhancing your entrepreneurial skills.
- Why this job: Work directly with successful founders and gain insights into scaling AI in business.
- Qualifications: 4+ years of full-stack software engineering experience and a passion for problem-solving.
The predicted salary is between 100000 - 120000 £ per year.
Stackfix is a Tier 1-backed London startup founded by repeat entrepreneurs who sold companies to TikTok and the HR sector. We deploy frontier AI inside real‑world businesses—from PE funds to manufacturers—building production systems that handle real transactions and drive tangible profits through technology diffusion and custom workflow automation.
You will join Stackfix as a founding engineer to build and deploy production AI systems for diverse industries. Working directly with exited founders, you’ll bridge the gap between frontier models and enterprise workflows, shipping end‑to‑end software that processes real transactions. This is a high‑agency role focused on solving valuable, real‑world problems.
Location: London, UK
Why this role is remarkable:
- Work directly with repeat founders Paddy Stobbs (sold Jukedeck to TikTok) and Tom Dekan, gaining unique daily insights into selling, building, and scaling AI.
- Gain unparalleled exposure to frontier AI in production, learning which models and methodologies actually deliver value in high‑stakes business environments rather than just following hype.
- Enjoy rapid variety by solving unique problems across diverse sectors like PE funds and logistics, providing better entrepreneurial preparation than years spent on a single product.
What You Will Do:
- Build and ship production‑ready AI systems end‑to‑end, from initial scoping with enterprise clients to deploying software that handles hundreds of daily transactions.
- Join client calls and visit sites to understand complex business workflows, presenting your work directly to leadership at global firms and investment funds.
- Iterate on frontier AI models and tooling to create robust systems that review patient records, process factory orders, or audit complex financial obligations.
The ideal candidate:
- Possesses 4+ years of full‑stack software engineering experience with a proven track record of shipping production systems rather than just building isolated features.
- Demonstrates high agency through a portfolio of side projects or open‑source contributions that show a natural hunger for building and solving technical problems.
- Combines strong technical implementation skills with a genuine curiosity about business operations, capable of learning fast and performing at a high level in person.
StudySmarter Expert Advice🤫
We think this is how you could land Founding Applied AI Engineer (£100k-£120k + Equity) at Stackfix in London
✨Join Local Tech Meetups
Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Jack & Jill or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!
✨Contribute to Open Source Projects
Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to Jack & Jill.
✨Tap into Online Developer Communities
Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like Jack & Jill.
✨Explore Job Boards Specifically for Tech Roles
Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like Jack & Jill that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!
We think you need these skills to ace Founding Applied AI Engineer (£100k-£120k + Equity) at Stackfix in London
Some tips for your application 🫡
Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.
Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Jack & Jill.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Jack & Jill and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!
Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!
How to prepare for a job interview at Jack & Jill
✨Brush Up on Your Coding Skills
For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.
✨Know Your Tools and Frameworks
Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Jack & Jill uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.
✨Showcase Your Projects
Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.
✨Prepare for Behavioural Questions
While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.
